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Micropore ceramic filter element and preparation method thereof

A technology of microporous ceramics and filter cores, applied in the field of ceramic filter cores, can solve the problems of high production cost of finished products, cumbersome production process, large production investment, etc., and achieve the effects of low production cost, low production cost and high production efficiency.

Inactive Publication Date: 2010-07-21
张顺 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production process is not only cumbersome and requires a large production investment, but also the calcination process is also a process of high energy consumption, resulting in high production costs of finished products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Diatomaceous earth (greater than 60 mesh) 30 Kaolin 10 Silica sol (30% silica content) 35

[0026] 10% content polyvinyl alcohol aqueous solution 24 ammonium bicarbonate 1

[0027] Its preparation method is as follows:

[0028] Weigh each raw material according to the percentage of formula quantity, and the operation steps are as follows:

[0029] ① Weigh each raw material according to the percentage of formula quantity.

[0030] ②Mix the binder and plasticizer evenly.

[0031] ③ Add the curing agent to the raw materials that have been mixed in step ② and mix well.

[0032] ④ Immediately add the raw materials mixed in step ③ to the filtered raw materials and mix well.

[0033] ⑤ Put the raw materials mixed in step ④ into the pre-prepared mold for extrusion or stamping to form an embryo, and then dry the moisture in the embryo body at a certain temperature to shape it, that is, to become porous micropores with a specified shape Ceramic filter.

Embodiment 2

[0035] Diatomaceous earth (greater than 100 mesh) 25 Kaolin 20 Silica sol (40% silica content) 40

[0036] 10% content polyvinyl alcohol aqueous solution 14 ammonium bicarbonate 1

[0037] Its preparation method is as follows:

[0038] Weigh each raw material according to the percentage of formula quantity, and the operation steps are as follows:

[0039] ① Weigh each raw material according to the percentage of formula quantity.

[0040] ②Mix the binder and plasticizer evenly.

[0041] ③ Add the curing agent to the raw materials that have been mixed in step ② and mix well.

[0042] ④ Immediately add the raw materials mixed in step ③ to the filtered raw materials and mix well.

[0043] ⑤Put the raw materials mixed in step ④ into the pre-prepared mold for extrusion or stamping to form an embryo, and then dry the moisture in the molded body at a certain temperature to shape it, that is, to become porous micropores with a specified shape Ceramic filter.

Embodiment 3

[0045] Diatomaceous earth (greater than 100 mesh) 35 Kaolin 10 Silica sol (40% silica content) 40

[0046] 2% content sodium carboxymethyl cellulose aqueous solution 12 sodium bicarbonate 3

[0047] Its preparation method is as follows:

[0048] Weigh each raw material according to the percentage of formula quantity, and the operation steps are as follows:

[0049] ① Weigh each raw material according to the percentage of formula quantity.

[0050] ②Mix the binder and plasticizer evenly.

[0051] ③ Add the curing agent to the raw materials that have been mixed in step ② and mix well.

[0052] ④ Immediately add the raw materials mixed in step ③ to the filtered raw materials and mix well.

[0053] ⑤Put the raw materials mixed in step ④ into the pre-prepared mold for extrusion or stamping to form an embryo, and then dry the moisture in the molded body at a certain temperature to shape it, that is, to become porous micropores with a specified shape Ceramic filter.

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Abstract

The invention relates to a micropore ceramic filter element, in particular to a micropore ceramic filter element and a preparation method thereof. In the process of preparing the micropore ceramic filter element, raw materials are weighed according to the percentage in the formula, are added, mixed and uniformly stirred according to specified steps, and then are extruded or punched by an extruder or a punching machine into a blank, then the blank is dried at certain temperature to be shaped, and then the polyporous micropore ceramic filter element is formed. The micropore ceramic filter element is made of kaolin and diatomaceous earth which are bonded by a water-based adhesive, and has the advantages of low manufacturing cost, safety and environment protection. Simultaneously, the blank is molded by extrusion or punching, so cumbersome technology in the grouting process is eliminated, only moisture in the blank needs to be removed in the molding process, the existing energy-consuming process of long-time high-temperature calcination is avoided, and the production cost is greatly reduced.

Description

[0001] technical field [0002] The invention relates to a ceramic filter core, in particular to a microporous ceramic filter core and a preparation method thereof. Background technique [0003] At present, the production method of the ceramic filter element used for purifying drinking water is mainly to grind kaolin and diatomite into powder, add water to refine the mud to form a slurry, inject the slurry into a pre-prepared mold to make an embryo body, and then put the embryo body into The water is dried, and then the dried embryo body is sent to a high-temperature furnace above 700 degrees for calcination. This production process is not only cumbersome and requires a large production investment, but also the calcination process is also a process of high energy consumption, resulting in high production costs for finished products. Contents of the invention [0004] The present invention provides a new microporous ceramic filter element and its preparation method in order ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/20B01J20/10B01J20/14B01J20/12C02F1/28C04B38/00
Inventor 张顺戴奉楚
Owner 张顺
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